Potassium Phosphate, Tribasic → 6-oxo-5H-phenanthridine-2-carbonitrile

Participants

Reaction Steps

2-(4,4-Dimethyl-[1,3,2]dioxaboronan-2-yl)-benzoic acid ethyl ester (19.84 g), 2-iodo-4-cyanoaniline (18.47 g), tetrakis(triphenylphosphine)palladium (8.75 g) and potassium phosphate (35.36 g) were added to dioxane (360 ml), and the resulting mixture was heated under reflux overnight. The reaction solvent was cooled, and the produced solid was collected by filtration, washed with water and dried to thereby obtain 17.3 g (yield: quantitative) of the title compound as a yellow solid.

Provenance & Evidence